Base | Representation |
---|---|
bin | 111010110100… |
… | …0000100010001 |
3 | 2011000120121121 |
4 | 1311220010101 |
5 | 30343204321 |
6 | 3020522241 |
7 | 523043563 |
oct | 165500421 |
9 | 64016547 |
10 | 30834961 |
11 | 16450843 |
12 | a3b0381 |
13 | 6508051 |
14 | 4149333 |
15 | 2a91441 |
hex | 1d68111 |
30834961 has 4 divisors (see below), whose sum is σ = 31491072. Its totient is φ = 30178852.
The previous prime is 30834953. The next prime is 30834983. The reversal of 30834961 is 16943803.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16943803 = 2887 ⋅5869.
It is a cyclic number.
It is not a de Polignac number, because 30834961 - 23 = 30834953 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30834931) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327985 + ... + 328078.
It is an arithmetic number, because the mean of its divisors is an integer number (7872768).
Almost surely, 230834961 is an apocalyptic number.
It is an amenable number.
30834961 is a deficient number, since it is larger than the sum of its proper divisors (656111).
30834961 is an equidigital number, since it uses as much as digits as its factorization.
30834961 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 656110.
The product of its (nonzero) digits is 15552, while the sum is 34.
The square root of 30834961 is about 5552.9236443517. The cubic root of 30834961 is about 313.5795995391.
The spelling of 30834961 in words is "thirty million, eight hundred thirty-four thousand, nine hundred sixty-one".
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